Geometry Proof i have no idea how to do please help me use statement and reasoning if you don’t mind

How many solutions does the nonlinear system of equations graphed below have?

Amira is painting a rectangular banner 2 1/4 yards wide. the banner will have a blue background. amira has enough paint to cover 1 1/2 square yards of the wall. the school colors are blue and yellow, so amira wants to add yellow rectangles on the left and right sides of the blue rectangle. the yellow rectangles will each be 3/4 yards wide and the same height as the blue rectangle. what will be the total area of the two yellow rectangles?

Use sigma notation to represent the following series for 9 terms.